package PTA2.ti39;

import java.util.Scanner;

/**
 * @author Lenovo
 */
public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int n=scanner.nextInt();
        int sum=0;
        for (int i = 0; i < n; i++){
            sum+=scanner.nextInt();;

        }
        System.out.println(sum);
        scanner.close();
    }
}
